Update cheatsheets

tldr/docker

@@ -33,9 +33,9 @@ source: https://github.com/tldr-pages/tldr.git
 
 `docker exec -it {{container_name}} {{sh}}`
 
-- Remove a stopped container:
+- Remove stopped containers:
 
-`docker rm {{container_name}}`
+`docker rm {{container1 container2 ...}}`
 
 - Fetch and follow the logs of a container:
 

tldr/docker-image

@@ -24,3 +24,7 @@ source: https://github.com/tldr-pages/tldr.git
 - Show the history of a local Docker image:
 
 `docker image history {{image}}`
+
+- View documentation for `docker image rm`:
+
+`tldr docker rmi`

tldr/linux/growpart

@@ -0,0 +1,17 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# growpart
+
+> Extend a partition in a disk or disk image to fill available space.
+> More information: <https://github.com/canonical/cloud-utils>.
+
+- Extend partition `n` from `sdX` to fill empty space until end of disk or beginning of next partition:
+
+`growpart {{/dev/sdX}} {{n}}`
+
+- Show what modifications would be made when growing partition `n` in a disk image:
+
+`growpart --dry-run {{/path/to/disk.img}} {{n}}`

tldr/mariadb-install-db

@@ -0,0 +1,13 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# mariadb-install-db
+
+> Initialize a MariaDB database.
+> More information: <https://manned.org/mariadb-install-db>.
+
+- Initialize a database:
+
+`mariadb-install-db --user={{user}}} --basedir={{/usr}} --datadir={{/var/lib/mysql}}`